Orthopedics

Dog Study 1:

Forelimb lameness due to fragmented medial coronoid process (a
component of elbow dysplasia) is a common orthopedic condition of
large breed dogs such as Labrador Retrievers (Figure 1).
Although the exact cause of this condition is unknown, it may
develop as a result of abnormal loading across the elbow joint
during walking or running. In order to determine if abnormal
loading of the elbow joint plays a role in this disease, we have
recently completed a study to determine normal limb alignment
values in healthy Labrador Retrievers (Figure 2). A special
technique was developed at Texas A&M University to obtain these
measurements and our results have been submitted for
publication.

The next step in this exciting project, which may help us
determine a potential cause and treatment of this disease, is
to determine thoracic limb alignment values in Labrador Retrievers
affected by fragmented coronoid process. We routinely treat
Labrador Retrievers with FCP through our Orthopedics Service.
As such, enrollment in this study can occur independently of FCP
treatment or if your pet is referred to Texas A&M for elbow
problems such as FCP.

Contact Persons:

W. Brian Saunders, DVM, PhD, Diplomate ACVS
Kate Kaufman, DVM

Inclusion criteria and general background
information:

Labrador Retrievers 15 months of age or older that are in good
general health and diagnosed with fragmented coronoid process
(FCP). Eligible dogs will undergo a physical and orthopedic
examination, followed by light sedation and recumbent imaging of
both elbows and forelimbs using Computed Tomography (CT) and
radiography (x-rays). The following day, radiographs (x-rays)
of both elbows and forelimbs will be obtained in a standing
position.

Exclusion criteria:

Dogs less than 15 months of age or dogs with open growth
plates.

Any dog found to have a physical exam abnormality for which
sedation would be an unnecessary risk (i.e. heart murmur) will also
be excluded.

Owner Commitments:

Each dog will participate once, there is no follow-up
necessary. The examination and radiography (x-ray) session
typically will require 1-2 hours of your time.

Financial incentives:

All costs associated with this study are provided in exchange
for your participation. Eligible Labrador Retrievers will
receive a physical exam, orthopedic exam, as well as CT and
radiographs (x-rays) of both forelimbs. Digital copies of
these images will be provided to owners at no charge. Should
owners elect to pursue surgical or medical treatment of FCP through
Texas A&M Orthopedic Surgery, the costs of these treatments
will not be covered by this study.